Weather Watch 4 chief meteorologist Mike Harvey said most locations saw 2-3 inches of snow. Most areas can expect to see additional light snowfall or flurries overnight into Saturday.

Conditions were particulary rough on the Parkway West/Interstate 376, where a tractor-trailer got stuck going uphill and traffic in the area of Robinson Towne Center was at a standstill while PennDOT crews tried to clear the road. Closer toward the city, an uphill tractor-trailer got stuck near the outbound exit to Parkway Center Mall and cars slowly navigated around it.

Allegheny County 911 said the Homestead Grays Bridge was closed early in the afternoon because road conditions were too bad.

At one point, all outbound traffic from the Parkway East and the Fort Duquesne Bridge was stopped by PennDOT workers at the mouth of the Fort Pitt Bridge.

The city's public works department sent an email that said they planned to have road crews working 12-hour shifts around the clock.